923978011 has 16 divisors (see below), whose sum is σ = 1052932608. Its totient is φ = 802595200.

The previous prime is 923977987. The next prime is 923978021. The reversal of 923978011 is 110879329.

923978011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 923978011 - 2⁵ = 923977979 is a prime.

It is a super-2 number, since 2×923978011² = 1707470729623032242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (923978021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 381075 + ... + 383491.

It is an arithmetic number, because the mean of its divisors is an integer number (65808288).

Almost surely, 2^923978011 is an apocalyptic number.

923978011 is a deficient number, since it is larger than the sum of its proper divisors (128954597).

923978011 is a wasteful number, since it uses less digits than its factorization.

923978011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3962.

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 923978011 is about 30397.0066124939. The cubic root of 923978011 is about 973.9886110119.

The spelling of 923978011 in words is "nine hundred twenty-three million, nine hundred seventy-eight thousand, eleven".